Hostesses and pilots are allowed to refuse to work on the route, but those who agree must also comply with the Islamic republic’s local law.

“I’ll wear the veil since Iranian law obliges me to do so and both tolerance and respect for customs and cultures are part of Air France’s values,” said stewardess Laurence Priard, who worked on the flight.

On board, Air France’s normal rules apply, including the operation of a full catering service and alcohol – which is banned in Iran.

The resumption of direct flights is one in a number of steps taken to rebuild relations after sanctions against Iran for its controversial nuclear programme were partially lifted in July 2015.